Gynaecology Flashcards
Common presenting complaints in gynecology?
▪ Heavy/painful/irregular or absent periods
▪ Pelvic pain/pain on intercourse
▪ Urinary incontinence
▪ ‘something coming down’ (prolapse)
▪ Infertility
▪ Request for sterilisation
▪ Bleeding or pain in early pregnancy
▪ Postmenopausal bleeding
▪ Vaginal discharge
What should be asked about in a menstrual history?
First and last day of last menstrual period (LMP)
Any abnormal bleeding: intermenstrual or post coital bleeding
Menarche (age at first period)
Frequency – average 28 days <24 days Frequent, >38 days Infrequent
Duration of bleeding – average 5 days (>8 days Prolonged, <4.5 days shortened)
Volume – average 40ml menstrual blood loss over course of menses
>80ml heavy (Hb and Ferritin affected), <5ml Light
Women may describe ‘flooding’ and clots passed
What might you ask a patient about contraception when history taking?
Current method and duration of use
Previous methods - what method, length of use, why it was stopped, when it was stopped
Any problems with contraception
Hx of migraines with aura if considering COCP
What might you ask a patient about cervical smears when taking a gynae history?
When a smear was last taken
What was the result
What might be relevant to obstetric history?
Gravidity (number of pregnancies)
Parity (number of births of gestation last 24 weeks)
Pregnancy outcomes
Birth weights
Modes of delivery - vaginal, assisted vaginal (forceps), c section
When births occurred (at term)
Prv baby weight
Any miscarriages - when - medical, spontaneous, surgical (D&C)
Antenatal checks - chromosomal abnormalities testing?? Bloods, 11-14 week dating scan, 20 week abnormality scan
What might be relevant in a past gynaecology history?
Past gynaecological problems, their investigations and treatment
Previous gynaecological operations
Past genitourinary infections
Smears
Contraception
Menstural history
Sexual history including STIs
Basic structure of gynaecological history?
Demographic and reproductive identifiers
Presenting complaint (elaborate, impact on QOL and normal functioning)
Menstrual history
Contraception
Sexual history
Possibility of pregnancy
Cervical smear
Obstetric history and plans for future pregnancies
Previous gynaecological history
Past medical history
DHx inc allergies
Social hx including smoking and alcohol
FHx
System inquires
ICE
Describe the mechanism of action in tranexamic acid in the management of heavy menstrual blood loss
Fibrinolytic drug
TXA is a synthetic reversible competitive inhibitor to the lysine receptor found on plasminogen. The binding of this receptor prevents plasmin (activated form of plasminogen) from binding to and ultimately stabilizing the fibrin matrix and therefore bleeding.
Describe the mechanism of action in mefanamic acid in the management of heavy menstrual blood loss and dysmenorrhea?
NSAID, works by inhibition of prostaglandin synthesis + reduces the activity of prostaglandins in the uterus lining which are elevated in women with heavy bleeding.
Prostaglandins are hormones which cause pain and inflammation
What is hematometra and why might it occur?
Hematometra is a collection or retention of blood in the uterus most commonly due to an imperforate hymen or transverse vaginal septum.
Acquired causes leading to cervical stenosis include radiation treatment, ablation, cervical conization, or malignancies
Causes of menorrhagia?
Dysfunctional uterine bleeding (no identifiable cause)
Extremes of reproductive age
Fibroids
Endometriosis and adenomyosis
Pelvic inflammatory disease (infection)
Contraceptives, particularly the copper coil
Anticoagulant medications
Bleeding disorders (e.g. Von Willebrand disease)
Endocrine disorders (diabetes and hypothyroidism)
Connective tissue disorders
Endometrial hyperplasia or cancer
Polycystic ovarian syndrome
The PALM-COEIN system divides the causes into structural (‘PALM’) and non-structural (‘COEIN’) - what are the structural causes of menorrhagia?
Polyps
Adenomyosis
Leiomyoma (fibroid)
Malignancy of endometrial hypoplasia (this includes bleeding from vaginal or cervical malignancies, or that provoked by ovarian tumours)
The PALM-COEIN system divides the causes into structural (‘PALM’) and non-structural (‘COEIN’) - what are the non-structural causes of menorrhagia?
Coagulopathy (Von Willebrand’s disease is the most common coagulopathy to cause heavy menstrual bleeding, also consider warfarin therapy)
Ovarian dysfunction (PCOS, hypothyroidism)
Endometriosis
Iatrogenic (E.g. contraceptive hormones, copper IUD.)
No identifiable cause (DUB)
What features might suggest an underlying coagulopathy in a patient presenting with HMB (menorrhagia)
HMB since menarche
History of post-partum haemorrhage
Surgical related bleeding or dental related bleeding; Easy bruising/epistaxis
Bleeding gums
Family history of bleeding disorder
How might fibroids present?
Bulky uterus O/E
HMB
Hx of pressure symptoms (urinary freq, constipation)
What volume of blood loss during a period would affects Hb and Ferritin?
> 80ml
Anaemia from 120ml
Most patients presenting with menorrhagia (heavy menstrual bleeding) should be examined (pelvic examination with speculum and bimanual) - what should be looked out for?
Pallor (anaemia)
Palpable uterus or pelvic mass
Try to ascertain if the uterus is smooth or irregular (fibroids)
A tender uterus or cervical excitation point toward adenomyosis/endometriosis
Inflamed cervix/cervical polyp/cervical tumour
Vaginal tumour
Ascities
Main features of HMB (menorrhagia)
Bleeding during menstruation deemed to be excessive for the individual woman (>80ml): changing pads every 1-2 hours, bleeding lasting more than 7 days or passing very large clots.
Fatigue.
Shortness of breath (if associated anaemia).
Main risk factors for heavy menstrual bleeding (menorrhagia)?
The two main risk factors for heavy menstrual bleeding are age (more likely at menarche and approaching the menopause), and obesity.
There are also other risk factors that relate to the specific causes of HMB. One example would be previous caesarean section – as a risk factor for adenomyosis.
What is HMB?
Heavy menstrual bleeding - excessive menstrual loss, bleeding not related to pregnancy and occurring only within the woman’s reproductive years (ie. not post-menopausal bleeding).
Diagnosis based on symptoms - such as changing pads every 1-2 hours, bleeding lasting more than 7 days, passing large blood clots.
Most patients presenting with menorrhagia (heavy menstrual bleeding) should be examined (pelvic examination with speculum and bimanual) - when might they not require PV examination?
Straightforward hx HMB without other risk factors or symptoms
Patients who are young and not sexually active
What investigation should be performed in all women with HMB and why?
Full blood count - to look for iron deficiency anaemia
What bloods might be performed in a women presenting with HMB?
Full blood count:
Anaemia tends to present after menstrual blood loss of 120ml.
Thyroid function test:
If other signs and symptoms of underactive thyroid.
Other hormone testing:
Not routine but considered if other clinical features e.g. suspicion of Polycystic ovary syndrome.
Coagulation screen + test for Von Willebrand’s:
If suspicion of clotting disorder on history taking.
HMB: imaging, histology and microbiology
Ultrasound pelvis
Transvaginal US is most clinically useful for assessing the endometrium and ovaries.
It should be considered if the uterus or a pelvic mass is palpable on examination, or if pharmacological treatment has failed.
Cervical smear
No need to repeat if up to date.
High vaginal and endocervical swabs for infection.
Pipelle endometrial biopsy:
(if persistent intermenstrual bleeding, >45 years old, and/or failure of pharmacological treatment.)
Hysteroscopy and endometrial biopsy:
(Typically performed when ultrasound identifies pathology, or is inconclusive)